On 27 Dec, 2004, at 16:42, CJ Scaminaci wrote: I think there's probably a reason there's nothing around. Cooling Macs is trivial, they don't have heat problems (with the exception of the G4 Cube). The reason anything pre-7450 even had a temperature sensor was because they were using FPGA's to simulate the CPU in development. That was a point where changing chip architecture actually helped reduce heat! It was merely in production machines for a convenience factor; meaning, it was more or less a cooking thermometer :). CJ, I appreciate the information that you added, but am a little confused by your nomenclature. Not all of us are "Wizards" at the Mac and do not know all the acronyms. Perhaps you could expand on the information that you included so I could see where you are going? Ie: FPGA and pre-7450 are not terms that I have encountered yet in my readings except for your posting. Thanks in advance, Ron